<SEC-DOCUMENT>0001292814-26-003224.txt : 20260529
<SEC-HEADER>0001292814-26-003224.hdr.sgml : 20260529
<ACCEPTANCE-DATETIME>20260528185554
ACCESSION NUMBER:		0001292814-26-003224
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20260630
FILED AS OF DATE:		20260529
DATE AS OF CHANGE:		20260528

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Banco Santander (Brasil) S.A.
		CENTRAL INDEX KEY:			0001471055
		STANDARD INDUSTRIAL CLASSIFICATION:	COMMERCIAL BANKS, NEC [6029]
		ORGANIZATION NAME:           	02 Finance
		EIN:				000000000
		STATE OF INCORPORATION:			D5
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		6-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34476
		FILM NUMBER:		261038389

	BUSINESS ADDRESS:	
		STREET 1:		AV. JUSCELINO KUBITSCHEK, 2235
		STREET 2:		AV. JUSCELINO KUBITSCHEK, 2041
		CITY:			SAO PAULO, SP
		STATE:			D5
		ZIP:			04543-011
		BUSINESS PHONE:		(55 11) 3174-8589

	MAIL ADDRESS:	
		STREET 1:		AV. JUSCELINO KUBITSCHEK, 2235
		STREET 2:		AV. JUSCELINO KUBITSCHEK, 2041
		CITY:			SAO PAULO, SP
		STATE:			D5
		ZIP:			04543-011
</SEC-HEADER>
<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>bsbr20260528_6k.htm
<DESCRIPTION>6-K
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<DIV align=center><FONT color=#000000 size=5 face="Times New Roman"><B>UNITED STATES<BR>SECURITIES AND EXCHANGE COMMISSION </B></FONT></DIV>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman"><B>Washington, D.C. 20549 </B></FONT></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV>

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<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center><FONT color=#000000 size=5 face="Times New Roman"><B>FORM 6-K</B></FONT></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center><FONT color=#000000 size=2 face="Times New Roman"><B>REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE</B></FONT></DIV>

<DIV align=center><FONT color=#000000 size=2 face="Times New Roman"><B>SECURITIES EXCHANGE ACT OF 1934 </B></FONT></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center>

<DIV><FONT color=#000000 size=3 face="Times New Roman"><B>For the month of May, 2026</B></FONT></DIV>

<HR align=center color=#000000 width="21%" noShade>

<FONT color=#000000 size=3 face="Times New Roman"><B>Commission File Number: 001-34476 </B></FONT></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center><FONT color=#000000 size=5 face="Times New Roman"><B>BANCO SANTANDER (BRASIL) S.A. </B></FONT></DIV>

<DIV align=center><FONT color=#000000 size=2 face="Times New Roman"><B>(Exact name of registrant as specified in its charter) </B></FONT></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center></DIV>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman"><B>Avenida Presidente Juscelino Kubitschek, 2041 and 2235<BR>Bloco A &#8211; Vila Olimpia<BR>S&#227;o Paulo, SP 04543-011<BR>Federative Republic of Brazil </B></FONT></DIV>

<P style="MARGIN: 0cm 0cm 0pt"><FONT size=2></FONT>&nbsp;</P>

<DIV align=center><FONT color=#000000 size=2 face="Times New Roman"><B>(Address of principal executive office) </B></FONT></DIV>

<P style="MARGIN: 0cm 0cm 0pt"><FONT size=2></FONT>&nbsp;</P>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman">Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:</FONT> <FONT color=#000000 size=3 face="Times New Roman">Form 20-F ___X___ Form 40-F _______</FONT>

<P>&nbsp;<FONT size=3 face="'Times New Roman, Times, Serif'">Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):</FONT>&nbsp;</P>

<P><FONT color=#000000 size=3 face="Times New Roman">Yes _______ No ___X____</FONT></P>

<P>&nbsp;<FONT size=3 face="'Times New Roman, Times, Serif'">Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):</FONT>&nbsp;</P>

<P><FONT color=#000000 size=3 face="Times New Roman">Yes _______ No ___X____</FONT> </P>

<P>&nbsp;<FONT size=3 face="'Times New Roman, Times, Serif'">Indicate by check mark whether by furnishing the information contained in this Form, the Registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934:</FONT>&nbsp;</P>

<P><FONT color=#000000 size=3 face="Times New Roman">Yes _______ No ___X____</FONT> </P>

<P>&nbsp;<FONT size=3 face="'Times New Roman, Times, Serif'">If &#8220;Yes&#8221; is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):&nbsp;<U>&nbsp;N/A</U></FONT></P></DIV>

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<P STYLE="font: 10pt/14pt Verdana, Helvetica, Sans-Serif; text-align: left; margin-top: 0; margin-bottom: 0">&nbsp;<IMG SRC="bsbr202605286k_001.jpg" ALT=""></P>

<P STYLE="font: 9pt Verdana,sans-serif; margin: 0; text-align: right"><I>[Free English Translation]</I></P>

<P STYLE="font: 10pt/14pt Verdana, Helvetica, Sans-Serif; text-align: left; margin-top: 0; margin-bottom: 0">&nbsp;</P>

<P STYLE="font: 10pt/12pt Verdana,sans-serif; margin: 0; text-align: center"><B>BANCO SANTANDER (BRASIL) S.A.</B></P>

<P STYLE="font: 10pt/12pt Verdana,sans-serif; margin: 0; text-align: center">Publicly Held Company with Authorized Capital</P>

<P STYLE="font: 10pt/12pt Verdana,sans-serif; margin: 0; text-align: center">Corporate Taxpayer ID (CNPJ/MF) n&ordm; 90.400.888/0001-42</P>

<P STYLE="font: 10pt/12pt Verdana,sans-serif; margin: 0; text-align: center">Company Registration (NIRE) 35.300.332.067</P>

<P STYLE="font: 10pt Verdana,sans-serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Verdana,sans-serif; margin: 0; text-align: center"><B>MATERIAL FACT </B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify; background-color: white"><B>BANCO SANTANDER (BRASIL) S.A.</B>
(&#8220;<U>Company</U>&#8221;), in compliance with the provisions of CVM Resolution No. 44, of August 23, 2021, and CVM Resolution No.
78 of March 29, 2022, informs its shareholders and the market in general that its Board of Directors, at a meeting held on this date,
resolved to submit for consideration by its shareholders, at the Extraordinary General Meeting to be held on June 30, 2026, the merger
by the Company of Esfera Fidelidade S.A. (&#8220;Esfera&#8221;), its wholly-owned subsidiary, with the transfer of all of Esfera&#8217;s
net equity to the Company (&#8220;Merger of Esfera&#8221;), pursuant to the &#8220;Protocol and Justification for the Merger of Esfera
Fidelidade S.A. into Banco Santander (Brasil) S.A.&#8221;</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Verdana,sans-serif; margin: 0; text-align: justify">The information and documents related to the call notice for
the Extraordinary General Meeting, including the respective Management Proposal and the Protocol and Justification for the Merger of Esfera,
were disclosed to shareholders on this date.</P>

<P STYLE="font: 10pt Verdana,sans-serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Verdana,sans-serif; margin: 0; text-align: justify">In compliance with Article 3 of CVM Resolution No. 78, the Company
describes below the main terms and conditions of the transaction:</P>

<P STYLE="font: 10pt Verdana,sans-serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt Calibri,sans-serif; margin: 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 10pt"><B>(i)</B></FONT><B><FONT STYLE="font-family: Times New Roman; font-size: 7pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</FONT><FONT STYLE="font-family: Verdana,sans-serif; font-size: 10pt"><U>Information from Exhibit A of CVM Resolution No. 78 on the Merger
of Esfera</U></FONT></B></P>

<P STYLE="font: 10pt Verdana,sans-serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>1. Identification of the companies involved in the operation
and a brief description of the activities they perform</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>1.1. Company Identification:</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">Banco Santander (Brasil) S.A. is a publicly-held company
registered as a category &#8220;A&#8221; company with the CVM (Brazilian Securities and Exchange Commission) under number 20532, with
its head office in the city of S&atilde;o Paulo, State of S&atilde;o Paulo, at Avenida Presidente Juscelino Kubitschek, No. 2041 &#8211;
CJ 281, Bloco A, Cond. Wtorre JK - Vila Nova Concei&ccedil;&atilde;o, Zip Code 04543-011, registered with the CNPJ under number 90.400.888/0001-42,
with its articles of association filed with S&atilde;o Paulo State Board of Trade under NIRE 35.300.332.067.</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">The Company's corporate purpose is to carry out active,
passive and accessory operations inherent to its authorized Portfolios (Commercial, Investment, Credit, Financing and Investment, Real
Estate Credit and Leasing), as well as Exchange and Securities Portfolio Management operations, in addition to any other operations that
may be permitted to companies of this type, in accordance with legal and regulatory provisions, and may participate in the capital of
other companies, as a partner or shareholder.</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>



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<P STYLE="font: 10pt/14pt Verdana, Helvetica, Sans-Serif; text-align: left; margin-top: 0; margin-bottom: 0">&nbsp;<IMG SRC="bsbr202605286k_001.jpg" ALT=""></P>

<P STYLE="font: 9pt Verdana,sans-serif; margin: 0; text-align: right"><I>[Free English Translation]</I></P>

<P STYLE="font: 10pt/14pt Verdana, Helvetica, Sans-Serif; text-align: left; margin-top: 0; margin-bottom: 0">&nbsp;</P>
<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>1.2. Esfera Identification: </B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">Esfera Fidelidade S.A., a privately held corporation, with
its head office in the city of S&atilde;o Paulo, State of S&atilde;o Paulo, at Avenida Presidente Juscelino Kubitschek, No. 2041 - CJ
211, Bloco A, Cond. Wtorre JK - Vila Nova Concei&ccedil;&atilde;o, Zip Code 04543-011, registered with the CNPJ under No. 31.595.265/0001-03,
with its articles of incorporation filed with the S&atilde;o Paulo State Board of Trade under NIRE 35.300.522.168.</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">Esfera&#8217;s main activity is the development and management
of customer loyalty programs.</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>2. Description and purpose of the operation</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">The transaction is part of the process of optimizing the
operational structure of the Santander Group in Brazil and consolidating the business related to the provision of certain ancillary services
to the Company&#8217;s activities, considering that such company has the technological capacity, personnel and resources necessary to
conduct the business on a consolidated basis.</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>3.1. Main benefits, costs and risks of the operation</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">As indicated in item 2 above, the transaction will bring
administrative, economic and financial benefits to the parties, particularly through the integration of administrative, operational and
technological processes, promoting gains in scale and efficiency in the management of resources and activities. The unified management
model will enable better capital allocation and standardization of operational practices, reinforcing the efficiency of corporate structures.</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">It is estimated that the total costs and expenses for the
implementation and completion of the Merger of Esfera will be concentrated in fees for auditors and other professionals hired by the Company,
as well as costs related to the preparation, publication and filing of corporate documents, which, together, should not exceed approximately
R$150,000.00 (one hundred and fifty thousand reais).</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">Considering that the Company holds 100% (one hundred percent)
of Esfera&#8217;s share capital, the parties understand that the Merger of Esfera does not increase the risk exposure of the parties and
does not impact the risk of the Company&#8217;s shareholders, investors or interested third parties.</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>4. Share exchange ratio </B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">Considering that the shares issued by Esfera are wholly
owned by the Company, the Merger of Esfera will result in the mere replacement of the investment previously held by the Company in Esfera
with the net book value of Esfera&#8217;s equity to be merged into the Company.</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">The transaction will not result in a capital increase for
the Company and/or the issuance of new shares by the Company. There will be no change in the Company&#8217;s shareholding structure as
a result of the Merger of Esfera.</P>


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<P STYLE="font: 10pt/14pt Verdana, Helvetica, Sans-Serif; text-align: left; margin-top: 0; margin-bottom: 0">&nbsp;<IMG SRC="bsbr202605286k_001.jpg" ALT=""></P>

<P STYLE="font: 9pt Verdana,sans-serif; margin: 0; text-align: right"><I>[Free English Translation]</I></P>

<P STYLE="font: 10pt/14pt Verdana, Helvetica, Sans-Serif; text-align: left; margin-top: 0; margin-bottom: 0">&nbsp;</P>
<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">Therefore, there is no need to discuss any exchange ratio
between shares issued by Esfera and shares issued by the Company. Upon completion of the Merger of Esfera, Esfera will be dissolved and
succeeded by the Company in all its rights, assets and obligations.</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>5. Share Exchange ratio criteria</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">As per item 4 above, the Merger of Esfera will be carried
out without any share exchange ratio.</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>6. Main assets and liabilities that will form each portion
of the equity, in the event of a spin-off</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">Not applicable.</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>7. Whether the transaction has been or will be submitted
for approval by Brazilian or foreign authorities</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">The implementation of the Merger of Esfera will not be subject
to approval by any other governmental authority, whether in Brazil or abroad.</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>8. In transactions involving controlling companies, subsidiaries
or companies under common control, the share exchange ratio calculated in accordance with art. 264 of Law No. 6,404 of 1976</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">Considering that Esfera is a wholly-owned subsidiary of
the Company, the calculation of the share exchange ratio, as provided for in Article 264 of Law No. 6,404/76, is not applicable.</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>9. Applicability of the right of withdrawal and refund
amount</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify">Given that the Company is the sole shareholder of Esfera,
the provisions relating to withdrawal rights, pursuant to Article 137 of Law No. 6,404/76, are not applicable to this transaction.</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: justify"><B>10. Other relevant information</B></P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0">The documents related to the Merger of Esfera are available to shareholders
at the Company&#8217;s headquarters and are published on the Company&#8217;s Investor Relations website at <FONT STYLE="color: Blue"><U>www.ri.santander.com.br</U></FONT>,
on the website of the Brazilian Securities and Exchange Commission (<FONT STYLE="color: Blue"><U>www.cvm.gov.br</U></FONT>) and on the
website of B3 S.A. &#8211; Brasil, Bolsa, Balc&atilde;o (<FONT STYLE="color: Blue"><U>http://www.b3.com.br</U></FONT>).</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: center">S&atilde;o Paulo, May 28, 2026.</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt/14pt Verdana,sans-serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/13pt Verdana,sans-serif; margin: 0; text-align: center"><I>Carlos Ignacio Mu&ntilde;iz Gonzalez Blanch</I></P>

<P STYLE="font: 10pt Verdana,sans-serif; margin: 0; text-align: center"><I>Investor Relations Officer</I></P>



<P STYLE="font: 10pt/14pt Verdana, Helvetica, Sans-Serif; text-align: left; margin-top: 0; margin-bottom: 0">&nbsp;</P>

<P STYLE="font: 10pt/14pt Verdana, Helvetica, Sans-Serif; text-align: left; margin-top: 0; margin-bottom: 0"></P>

<P STYLE="font: 7pt Georgia,serif; margin: 0 0.25in 0 0">&nbsp;</P>


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<DIV align=center><FONT color=#000000 size=3 face="Times New Roman"><B>SIGNATURE </B></FONT></DIV>

<DIV>&nbsp;</DIV>

<DIV>&nbsp;</DIV>

<DIV style="TEXT-INDENT: 4%"><FONT color=#000000 size=3 face="Times New Roman">Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereto duly authorized. </FONT></DIV>

<DIV style="TEXT-INDENT: 4%"><FONT color=#000000 size=3 face="Times New Roman">Date:&nbsp;May 28, 2026</FONT></DIV>

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   <DIV align=left><FONT color=#000000 size=3 face="Times New Roman"><STRONG>Banco Santander (Brasil) S.A.</STRONG></FONT></DIV></TD></TR>

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   <DIV align=center><FONT color=#000000 size=2 face="Times New Roman">/<SMALL>S</SMALL>/&nbsp;<B><FONT lang=PT-BR style="FONT-SIZE: 11pt" face="Calibri,sans-serif"><FONT style="FONT-FAMILY: Times New Roman"><FONT style="FONT-SIZE: 9pt">Reginaldo Antonio Ribeiro</FONT></FONT></FONT></B></FONT>&nbsp;

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   <DIV align=left><FONT color=#000000 size=2 face="Times New Roman"><B><FONT lang=PT-BR style="FONT-SIZE: 11pt" face="Calibri,sans-serif"><FONT style="FONT-FAMILY: Times New Roman"><FONT color=#000000 size=2 face="Times New Roman"><B><FONT lang=PT-BR style="FONT-SIZE: 11pt" face="Calibri,sans-serif"><FONT style="FONT-FAMILY: Times New Roman"><FONT style="FONT-SIZE: 9pt"><B><FONT lang=PT-BR style="FONT-SIZE: 11pt" face="Calibri,sans-serif"><FONT style="FONT-FAMILY: Times New Roman"><FONT style="FONT-SIZE: 9pt">Reginaldo Antonio Ribeiro<BR>Officer without specific designation</FONT></FONT></FONT></B></FONT></FONT></FONT></B></FONT></FONT></FONT></B></FONT><FONT color=#000000 size=2 face="Times New Roman"><B><BR></B></FONT></DIV></TD>

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   <DIV align=left><FONT color=#000000 size=2 face="Times New Roman">By:</FONT></DIV></TD>

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   <DIV align=center><FONT color=#000000 size=2 face="Times New Roman">/<SMALL>S</SMALL>/&nbsp;<B><FONT lang=PT-BR style="FONT-SIZE: 11pt" face="Calibri,sans-serif"><FONT style="FONT-FAMILY: Times New Roman"><FONT style="FONT-SIZE: 9pt">Carlos Ignacio Mu&ntilde;iz Gonzalez Blanch</FONT></FONT></FONT></B></FONT>

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   <DIV align=left><FONT color=#000000 size=2 face="Times New Roman"><B><FONT lang=PT-BR style="FONT-SIZE: 11pt" face="Calibri,sans-serif"><FONT style="FONT-FAMILY: Times New Roman"><FONT style="FONT-SIZE: 9pt"><B><FONT lang=PT-BR style="FONT-SIZE: 11pt" face="Calibri,sans-serif"><FONT style="FONT-FAMILY: Times New Roman"><FONT style="FONT-SIZE: 9pt">Carlos Ignacio Mu&ntilde;iz Gonzalez Blanch <BR><B><FONT lang=PT-BR style="FONT-SIZE: 11pt" face="Calibri,sans-serif"><FONT style="FONT-FAMILY: Times New Roman"><FONT style="FONT-SIZE: 9pt">Vice - President Executive Officer</FONT></FONT></FONT></B></FONT></FONT></FONT></B></FONT></FONT></FONT></B></FONT><FONT color=#000000 size=2 face="Times New Roman"><B><BR></B></FONT></DIV></TD>

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